Ceramsite production equipment

Abstract

The invention discloses ceramsite production equipment which comprises a stirring device, a granulating device and a baking device which are connected in sequence, the ceramsite production equipment comprises a plurality of material storage devices, the stirring device comprises an upper stirrer and a lower stirrer which are distributed up and down and connected, and the material storage devices are connected with the upper stirrer through spiral metering scales respectively. And a spraying device is arranged between the upper stirrer and the lower stirrer or in the lower stirrer. The ceramsite production equipment provided by the invention ensures that all materials are uniformly mixed and improves the ceramsite quality.

Description

Technical Field

[0001] The invention relates to equipment for producing ceramsite, and belongs to the technical field of ceramsite production equipment. Background Art

[0002] As a by-product of waste incineration, fly ash contains a high amount of heavy metals and dioxins, so it is classified as hazardous waste. However, fly ash is also rich in components with potential utilization value, such as Al2O3, SiO2, K2O, Na2O, CaO, etc. These components make the fly ash, after being treated with water washing, mixed with a proper amount of other materials (such as sludge, shale, etc.) in a certain proportion, and then granulated and sintered to produce expanded clay for construction and gardening. Now, the well-proportioned materials are usually added with water and directly stirred, and the well-proportioned materials are put into the mixer separately. After adding water, the components are easy to condense together, and it is impossible to achieve a good uniformity when stirring, which affects the quality of the expanded clay. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a device for producing ceramsite, which can ensure uniform mixing of various materials, improve the quality of ceramsite and solve the shortcomings of the prior art.

[0004] The technical solution of the present invention is: a device for producing ceramsite, comprising a stirring device, a granulating device, and a baking device connected in sequence, including a plurality of storage devices, wherein the stirring device comprises an upper stirrer and a lower stirrer connected to each other in an upper and lower distribution, and the plurality of storage devices are respectively connected to the upper stirrer through a spiral metering scale, and a spray device is provided between the upper stirrer and the lower stirrer or in the lower stirrer.

[0005] Furthermore, the upper agitator includes a cylinder with an open top and a cover body installed on the top of the cylinder. The bottom of the cylinder is connected to the lower agitator through a connecting pipe, and a valve is provided on the connecting pipe. The cover body is provided with a driver and a rotating shaft driven to rotate by the driver. The rotating shaft is inserted through the cover body and extends vertically into the cylinder. The rotating shaft is provided with stirring blades and blades.

[0006] Furthermore, a plurality of fixed blades are arranged on the inner wall of the cylinder.

[0007] Furthermore, the fixed blade is L-shaped, including a longitudinal portion that fits the inner wall of the cylinder and a transverse portion that extends in the direction of the axis of the cylinder, and both sides of the transverse portion are serrated.

[0008] Furthermore, the blade is installed with a rotating shaft bottom, and there is a gap between the blade and the transverse part of the fixed blade.

[0009] Furthermore, the blade is slidably connected to the rotating shaft, and a matching limiting mechanism is provided between the blade and the rotating shaft. The blade can slide relative to the rotating shaft and rotate together with the rotating shaft through the matching limiting mechanism. An elastic reset mechanism matching the blade is provided on the rotating shaft, and the elastic reset mechanism includes an elastic member that applies a force to the blade. The blade is in an initial state with a specific gap with the fixed blade under the limitation of the limiting mechanism and the elastic reset mechanism. The blade slides relative to the rotating shaft under the action of external force to increase the gap. At this time, the elastic member further deforms to generate elastic force. After the external force is removed, the elastic force of the elastic member resets the blade to its initial state.

[0010] The elastic reset mechanism further comprises a limit piece installed on the rotating shaft, the elastic piece is a spring, the spring is sleeved on the rotating shaft and located between the limit piece and the blade, the blade has a ring on which the spring is sleeved, and the limit piece is provided with a sliding fit with the ring.

[0011] Furthermore, the limiting member is threadedly connected to the rotating shaft, and the limiting member changes position by rotating to adjust the elastic force of the elastic member on the blade.

[0012] The spray device further comprises a pipe with a chamber therein, the bottom of the connecting pipe and the inlet of the lower agitator are located in the pipe chamber, the bottom of the connecting pipe is funnel-shaped with a larger top and a smaller bottom, and the inlet of the lower agitator is outwardly expanded, forming an inclined annular flow channel with the bottom of the connecting pipe.

[0013] Furthermore, the lower agitator is a horizontal agitator.

[0014] By implementing the present invention, materials for making ceramsite are respectively stored in the material storage device, and the materials are transported and weighed by a spiral metering scale to enter the upper agitator according to a certain proportion, and the upper agitator performs dry stirring to make the materials evenly mixed. The materials after stirring and mixing enter the lower agitator. In the process of entering the lower agitator, the spraying device sprays the mixed materials to make the materials have a certain viscosity, and then the materials are fully stirred and mixed in the lower agitator and enter the granulator for granulation. The formed ceramsite semi-finished products are then sintered in the baking device to complete the firing of the ceramsite, and the dry materials are conducive to accurate proportioning and mixing. After the materials have a certain viscosity after spraying, they are fully and evenly mixed after wet stirring in the lower agitator. Dry stirring and wet stirring can be carried out simultaneously without affecting production efficiency, and accurate proportioning and even mixing of each material are achieved, thereby improving the quality of ceramsite. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the present invention;

[0016] Figure 2 Schematic diagram of a stirring device;

[0017] Figure 3 for Figure 2The enlarged view of point B;

[0018] Figure 4 The schematic diagram of the upper agitator;

[0019] Figure 5 is a cross-sectional view of the upper agitator;

[0020] Figure 6 for Figure 5 Enlarged view of point A.

[0021] As shown in the figure: granulator 1; rotary kiln 2; storage bin 3; upper stirrer 4; lower stirrer 5; spiral metering scale 6; spray device 7; cylinder 8; cover 9; rotating shaft 10; stirring blade 11; blade 12; fixed blade 13; cross section 14; connecting pipe 15; slide groove 16; elastic pad 17; limiter 18; spring 19; collar 20; pipeline 21; annular flow channel 22; annular groove 23; connecting pin 24. DETAILED DESCRIPTION

[0022] Embodiments of the present invention: Figures 1 to 6 As shown, a device for producing ceramsite comprises a stirring device, a granulator 1, and a rotary kiln 2 connected in sequence, and comprises a plurality of storage bins 3. The stirring device comprises an upper stirrer 4 and a lower stirrer 5 which are connected in upper and lower distributions. The plurality of storage bins 3 are respectively connected to the upper stirrer 4 through a spiral metering scale 6. A spraying device 7 is arranged between the upper stirrer 4 and the lower stirrer 5 or in the lower stirrer 5. Materials (fly ash, sludge, etc.) for making ceramsite are respectively stored in each storage bin 3. The materials are transported and weighed by the spiral metering scale 6 so that the materials enter the upper stirrer 4 according to a certain proportion. The upper stirrer 4 performs dry stirring to make them evenly mixed. The materials after dry mixing and mixing enter the lower mixer 5 again. During the process of entering the lower mixer 5, the spraying device 7 sprays the mixed materials to make the materials have a certain viscosity. Subsequently, the materials are fully mixed and stirred in the lower mixer 5 and then transported to the granulator 1 for granulation. The formed ceramsite semi-finished products enter the rotary kiln 2 for sintering to complete the firing of the ceramsite. The dry materials are conducive to accurate proportioning and mixing. After spraying, the materials have a certain viscosity and then are wet-mixed in the lower mixer 5 for full and uniform mixing. Dry mixing and wet mixing can be carried out at the same time without affecting the production efficiency, so as to achieve accurate proportioning and uniform mixing of each material and improve the quality of ceramsite.

[0023] As a preferred embodiment, the upper agitator 4 includes a cylinder 8 with an open top and a cover 9 mounted on the top of the cylinder 8. The bottom of the cylinder 8 is connected to the lower agitator 5 through a connecting pipe 15. The connecting pipe 15 is provided with a valve. The cover 9 is provided with a motor and a rotating shaft 10 driven to rotate by the motor. The rotating shaft 10 is inserted through the cover 9 and vertically extends into the cylinder 8. The rotating shaft 10 is provided with stirring blades 11 and blades 12. After each material is transported and weighed by the spiral metering scale 6, it enters the cylinder 8 of the upper agitator 4. The motor drives the rotating shaft 10 to rotate, and the stirring blades 11 on the rotating shaft 10 and the blades 12 are connected. 12 rotates accordingly, the blade 12 further crushes the material, and the stirring blade 11 stirs and mixes to achieve accurate ratio and uniform mixing. After the mixing is completed, the valve on the connecting pipe 15 is opened to discharge it to the lower stirrer 5. In order to improve the crushing effect, a plurality of fixed blades 13 are provided on the inner wall of the cylinder 8. The fixed blade 13 is L-shaped, including a longitudinal portion that fits the inner wall of the cylinder 8 and a transverse portion 14 extending in the direction of the axis of the cylinder 8. The two sides of the transverse portion 14 are serrated. When the stirring blade 11 stirs, the material is further crushed by the fixed blade 13, thereby improving the crushing effect.

[0024] As a preferred embodiment, the fixed blade 13 is installed at the bottom of the rotating shaft 10, and there is a gap between the blade 12 and the transverse portion 14 of the fixed blade 13. When the blade 12 rotates, it cooperates with the transverse portion 14 of the fixed blade 13 to shear the material, further improving the crushing effect of the material and facilitating uniform mixing.

[0025] As a preferred embodiment, the blade 12 is slidably connected to the rotating shaft 10, and a matching limiting mechanism is provided between the blade 12 and the rotating shaft 10. The limiting mechanism is a slide groove 16 provided on the rotating shaft 10 along the length direction. The blade 12 is provided with a connecting pin 24 that is slidably connected with the slide groove 16. The blade 12 is sleeved on the rotating shaft 10, and the connecting pin 24 passes through the blade 12 and extends into the slide groove 16, so that the blade 12 can slide up and down along the rotating shaft 10 and rotate together with the rotating shaft 10. The rotating shaft 10 is provided with an elastic reset mechanism that cooperates with the blade 12. The elastic reset mechanism includes an elastic member that applies a force to the blade 12, specifically, the bottom of the rotating shaft is stepped, and the blade 12 is slidably connected to the thin end. The rotating shaft 10 is sleeved with an elastic pad 17 located between the upper side of the blade 12 and the stepped surface, and the stepped surface and the upper side of the blade 12 are both provided with grooves that are slidably connected with the elastic pad 17. A limiting member is provided at the end of the rotating shaft 10 18. The elastic member is located between the limit member 18 and the lower side of the blade 12. The elastic member applies an upward force to the blade 12. The elastic pad 17 resists and limits the upper end of the blade 12, so that the blade 12 is in an initial state with a specific gap with the fixed blade 13. When a larger material enters the gap between the blade 12 and the fixed blade 13, it will exert a downward force on the blade 12. At this time, the blade 12 slides down, the elastic member is compressed, and the gap becomes larger to allow it to pass smoothly. Then the elastic member resets and pushes the blade 12 to move up and reset to prevent the blade 12 from getting stuck. The slide groove between the upper side of the blade 12 and the step surface has a certain depth. When the blade 12 slides down, the two ends of the elastic pad 17 are always located in the groove between the upper side of the blade 12 and the step surface without separating. The elastic pad 17 resists and cooperates with the blade 12 to achieve soft contact, reduce damage, and prevent material from entering so that the blade 12 can be reset smoothly.

[0026] As a preferred embodiment, the elastic member is a spring 19, which is sleeved on the rotating shaft and located between the limit member 18 and the blade 12. The blade 12 has a ring 20 on which the spring sleeve 19 is arranged. The limit member 18 is provided with a ring groove 23 that cooperates with the ring 20. The lower end of the ring 20 is located in the ring groove 23. When the blade 12 slides and resets on the rotating shaft, the ring 20 slides in the ring groove 23. The ring 20 serves to block the material and prevent the material from entering and rendering the spring 19 ineffective.

[0027] As a preferred embodiment, the limit member 18 is threadedly connected to the rotating shaft 10, and the initial elastic force of the blade 12 is adjusted by the spring 19 by adjusting the height position of the limit member 18, so that the force required for the blade 12 to slide down can be adjusted as needed.

[0028] As a preferred embodiment, the spraying device includes a pipe 21 with a chamber therein, the bottom of the connecting pipe and the inlet of the lower agitator 5 are located in the chamber of the pipe 21, the bottom of the connecting pipe 15 is in the shape of a funnel with a larger top and a smaller bottom, the inlet of the lower agitator 5 is in the shape of an outward expansion, and forms an inclined annular flow channel 22 with the bottom of the connecting pipe 15, the pipe 21 is connected to a water supply pipe, and the material in the upper agitator 4 falls into the inlet of the lower agitator 5 through the connecting pipe and then enters the lower agitator 5. In this process, the water supply pipe transports water to the chamber of the pipe 21 at a certain flow rate, and sprays water on the falling material in a circular direction through the inclined annular flow channel 22, so that the water and the material are evenly mixed and then fall into the lower agitator 5, thereby achieving uniform water mixing and preventing the material from generating dust when falling into the lower agitator 5.

[0029] As a preference, the lower agitator 5 is a horizontal agitator, which is more conducive to wet stirring and uniform mixing.

Claims

1. A device for producing ceramsite, comprising a stirring device, a granulating device and a baking device connected in sequence, characterized in that: It comprises several material storage devices, wherein the stirring device comprises an upper stirrer and a lower stirrer which are connected to each other in upper and lower distributions, and the several material storage devices are respectively connected to the upper stirrer through a spiral metering scale, and a spraying device is arranged between the upper stirrer and the lower stirrer or in the lower stirrer.

2. The equipment for producing ceramsite according to claim 1, characterized in that: The upper agitator includes a cylinder with an open top and a cover body installed on the top of the cylinder. The bottom of the cylinder is connected to the lower agitator through a connecting pipe. The connecting pipe is provided with a valve. The cover body is provided with a driver and a rotating shaft driven to rotate by the driver. The rotating shaft is inserted through the cover body and extends vertically into the cylinder. The rotating shaft is provided with stirring blades and blades.

3. The equipment for producing ceramsite according to claim 2, characterized in that: A plurality of fixed blades are arranged on the inner wall of the cylinder.

4. The equipment for producing ceramsite according to claim 3, characterized in that: The fixed blade is L-shaped, comprising a longitudinal portion that fits the inner wall of the cylinder and a transverse portion that extends in the direction of the axis of the cylinder, and both sides of the transverse portion are serrated.

5. The equipment for producing ceramsite according to claim 4, characterized in that: The blade is installed with a rotating shaft bottom, and there is a gap between the blade and the transverse part of the fixed blade.

6. The equipment for producing ceramsite according to claim 3, characterized in that: The blade is slidably connected to the rotating shaft, and a matching limiting mechanism is provided between the blade and the rotating shaft. The blade can slide relative to the rotating shaft and rotate together with the rotating shaft through the matching limiting mechanism. An elastic reset mechanism matching the blade is provided on the rotating shaft, and the elastic reset mechanism includes an elastic member that applies a force to the blade. The blade is in an initial state with a specific gap with the fixed blade under the limitation of the limiting mechanism and the elastic reset mechanism. The blade slides relative to the rotating shaft under the action of external force to increase the gap. At this time, the elastic member is further deformed to generate elastic force. After the external force is removed, the elastic force of the elastic member resets the blade to its initial state.

7. The equipment for producing ceramsite according to claim 6, characterized in that: The elastic reset mechanism includes a limiter mounted on the rotating shaft, the elastic member is a spring, the spring is sleeved on the rotating shaft and located between the limiter and the blade, the blade has a ring on which the spring is sleeved, and the limiter is provided with a sliding fit with the ring.

8. The equipment for producing ceramsite according to claim 7, characterized in that: The limiting member is threadedly connected to the rotating shaft, and the limiting member changes position by rotating to adjust the elastic force of the elastic member on the blade.

9. The equipment for producing ceramsite according to any one of claims 2 to 8, characterized in that: The spray device includes a pipe with a chamber inside. The bottom of the connecting pipe and the inlet of the lower agitator are located in the pipe chamber. The bottom of the connecting pipe is funnel-shaped with a larger top and a smaller bottom. The inlet of the lower agitator is outwardly expanded, forming an inclined annular flow channel with the bottom of the connecting pipe.

10. The equipment for producing ceramsite according to claim 9, characterized in that: The lower stirrer is a horizontal stirrer.

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